Improvement in till-alarm



A. D. HOFFMAN.

Till Alarm.

Patented Oct. 27, 1868.

W in/660w m g unti eam. s

AUSTIN D. HOFFMAN, OF' MINNEAPOLIS, ASSIGNO'R, IO- HIMSELF AND FRANK BREWSTER, ()F AUSTINQMINNESOTA.

Letters Patent No. 83,498, dated Ootobe'r27, 1868.

IMPROVEMENT m TILL-ALARM.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may 0mm.-

Be it known that I, Ausrm D. HOFFMAN, of Minneapolis in thecounty of Hennepin,-and State of Minnesota, have invented a new and useful Improved Alarm-Lock for Money-Drawers; and .I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making part of this specification, in whIch Figure 1 is a perspective view, with part of the top broken away.

Figure'2 is a plan, and

Figure 3 an elevation of the back of the drawer.-

The same letters in all the figures indicate the same parts.

A is the drawer, sliding on cleats on the under side of thecountcr B.

O, is the handle, around which is a ring, inscribed with the letters of the alphabet or a series of numbers.

This ring desired. v v

The knob is attached to the rod 1), which. extends.

may be turned on the knob when through the drawer and has attached to itsrear end,

behind the drawer,a disk, E, which is perforated, near its periphery, with a series of holes, as'shown.

In these holes are inserted short pins, F, having heads on both ends. The pins may bemo'ved through the plate, longitudinally, and they will be projected to the rear, when the drawer isdrawn out, by striking against a projection, I, placed on the under side of the counter, in position to correspond with the notch A, cut in the back of the drawer. When the knob has been turned to make any letter but the right one to correspond with a mark on the front of the drawer,

and the drawer, drawn forward, the projection I will force out one of these pins.

The drawer can only be drawn out when the letter for which the knob is set is opposite the mark, and

when the notch E, in the wheel E, will be opposite.

the notch A and proj ection I.

There are as many chances against this as there are letters on the ring.

Failing in the first attempt, if the knob is turned back by the spring G, causing a hammer on the long arm of the lever to strike upon thebell H. The bell will thus be made to ring as often as the operator,

fails to bring the correct, letter in opposition to the mark. When the proper letter is thus in position, the drawer maybe opened, as the notch E will be in line with the projection I, so that the disk E will no longer strike against the latter.

-When the drawer is closed, the knob should be turned so as to carry the proper. letter away from the mark, when thcrewill be no guide to the correct letter to be used in opening it.

By tuming the ring G, a new letter may be fised each day.

What I claim my invention, and desire to secure by Letters Patent, isv 1. In combination with the drawer A, a revolving knob, O, ring, G, rod, D notched disk, E, and projecoperate substantially as described.

2. The disk E, constructed with pins F, substantially as and for the purpose set forth.

3. The combination of the knob, the adjustable ring 0, shaft D, and notched wheel E, with the projection I, substantially as and for the purpose set forth.

4. The disk E and pins F, so arranged, in relation to the lever and hell, that the bell shall be struck when the disk is turned, afger a pin has been projected behind it, substantially s and for the purpose set forth.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

, AUSTIN D. HOFFMAN.

Witnesses:

DAVID MORGAN, H. G. HIcKs. 

